I have just joined this forum and am happy to discover it. I am 65 years old and a fairly serious amateur photographer. I purchased my first Pentax camera in 1968 ( a Spotmatic). I just purchased a K-3 and will be using it for the first time this weekend on a trip to Monument Valley. I also own a K-5 IIs and a K-7 (converted for infrared B&W photography).
I discovered the forum because I was disappointed in the K-3 instruction manual and was looking for a solution. The manual I received is too brief, the print too small and the screen captures printed in manual can't be read! I seem to recall that there was a private publisher producing very detailed Pentax manuals.